Practical nickel cadmium battery automatic charger circuit

Published:2011/7/13 22:12:00 Author:TaoXi | Keyword: Practical nickel cadmium battery, automatic charger | From:SeekIC

The charge which is introduced in this article can supply the stable charging current and it has the timing circuit to control the charging time. As the figure 4-17 shows, when the press the button SW1, the city electricity is connected, the relay RL1 closes, the red light emitting diode LED2 turns on, this means that the charger has connected with the power. The regulator IC5 supplies the 12V DC voltage to the RL1. The regulator IC2 supplies the +5V voltage to the logic circuit. The constant current source is composed of IC1, it can output the stable charging current. R1 fixes the charging current at 50mA (used to charge the LR06 type storage battery), R6 fixes the charging current at 11mA (used to charge the 9V 6F22 type laminated battery).



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